Contains all GUI engine related classes and functions. More...

Namespaces
	Private
	In an attempt to make getters as fast as possible, by possibly still allowing inlining These fields should never be accessed outside of the GUI engine.

Classes
class	AbstractStateManager
	Abstract base class you must override from to use the GUI engine. More...

class	AbstractTopLevelContainer
	Represents a GUI widgets container. More...

class	DialogQueue

class	EmojiKeyboard

struct	MenuMessage

class	EventHandler
	Class to handle irrLicht events (GUI and input as well) More...

class	LayoutManager

class	ModalDialog
	Abstract base class representing a modal dialog. More...

class	ScreenSingleton
	Declares a class to be a singleton. More...

class	Screen
	Represents a single GUI screen. More...

class	CutsceneScreen

class	ScreenKeyboard
	Class representing a screen keyboard. More...

class	SkinWidgetContainer
	In order to avoid calculating render information every frame, it's stored in a SkinWidgetContainer for each widget (or each widget part if it requires many) More...

class	BoxRenderParams
	class containing render params for the 'drawBoxFromStretchableTexture' function see Overview of GUI skin for more information about skinning in STK More...

class	Skin
	Object used to render the GUI widgets see Overview of GUI skin for more information about skinning in STK. More...

class	Widget
	The nearly-abstract base of all widgets (not fully abstract since a bare Widget can be created for the sole goal of containing children widgets in a group) More...

class	BubbleWidget
	A text widget that can expand when focused. More...

class	ButtonWidget
	A text button widget. More...

class	CheckBoxWidget
	A checkbox widget. More...

class	DynamicRibbonHoverListener
	Even if you have a ribbon that only acts on click/enter, you may wish to know which item is currently highlighted. More...

struct	ItemDescription
	The description of an item added to a DynamicRibbonWidget. More...

struct	DynamicRibbonScrollCallback

class	DynamicRibbonWidget
	An extended version of RibbonWidget, with more capabilities. More...

class	IconButtonWidget
	A button widget with an icon and optionnaly a label beneath. More...

class	KartStatsWidget
	A progress bar widget. More...

class	LabelWidget
	A simple label widget. More...

class	IListWidgetHeaderListener

class	ListWidget
	A vertical list widget with text entries. More...

class	ModelViewWidget
	A model view widget. More...

class	PlayerKartWidget
	A widget representing the kart selection for a player (i.e. More...

class	ProgressBarWidget
	A progress bar widget. More...

class	RatingBarWidget
	A rating bar widget. More...

class	RibbonWidget
	A static text/icons/tabs bar widget. More...

class	SkillLevelWidget
	A skill level widget. More...

class	SpinnerWidget
	A spinner or gauge widget (to select numbers / percentages). More...

class	ITextBoxWidgetListener

class	TextBoxWidget
	A text field widget. More...

Enumerations
enum	GameState : unsigned int { MENU , GAME , INGAME_MENU , CURRENT }

enum	EventPropagation { EVENT_BLOCK , EVENT_BLOCK_BUT_HANDLED , EVENT_LET }

enum	NavigationDirection { NAV_LEFT , NAV_RIGHT , NAV_UP , NAV_DOWN }

enum	ModalDialogLocation { MODAL_DIALOG_LOCATION_CENTER = 0 , MODAL_DIALOG_LOCATION_BOTTOM = 1 }

enum	WidgetType { WTYPE_NONE = -1 , WTYPE_RIBBON , WTYPE_SPINNER , WTYPE_BUTTON , WTYPE_ICON_BUTTON , WTYPE_CHECKBOX , WTYPE_LABEL , WTYPE_BUBBLE , WTYPE_SPACER , WTYPE_DIV , WTYPE_DYNAMIC_RIBBON , WTYPE_MODEL_VIEW , WTYPE_LIST , WTYPE_TEXTBOX , WTYPE_PROGRESS , WTYPE_RATINGBAR }

enum	BadgeType { LOCKED_BADGE = 1 , OK_BADGE = 2 , BAD_BADGE = 4 , TROPHY_BADGE = 8 , GAMEPAD_BADGE = 16 , KEYBOARD_BADGE = 32 , LOADING_BADGE = 64 , ZIPPER_BADGE = 128 , ANCHOR_BADGE = 256 , DOWN_BADGE = 512 , HEART_BADGE = 1024 , REDDOT_BADGE = 2048 }

enum	Property { PROP_ID = 100 , PROP_PROPORTION , PROP_WIDTH , PROP_HEIGHT , PROP_CHILD_WIDTH , PROP_CHILD_HEIGHT , PROP_WORD_WRAP , PROP_ALTERNATE_BG , PROP_LINE_HEIGHT , PROP_X , PROP_Y , PROP_LAYOUT , PROP_ALIGN , PROP_ICON , PROP_FOCUS_ICON , PROP_TEXT_ALIGN , PROP_TEXT_VALIGN , PROP_MIN_VALUE , PROP_MAX_VALUE , PROP_MAX_WIDTH , PROP_MAX_HEIGHT , PROP_SQUARE , PROP_EXTEND_LABEL , PROP_LABELS_LOCATION , PROP_MAX_ROWS , PROP_WRAP_AROUND , PROP_DIV_PADDING , PROP_KEEP_SELECTION , PROP_CUSTOM_RATIO , PROP_ICON_ALIGN , PROP_COLOR_SLIDER }

enum	RibbonType { RIBBON_COMBO , RIBBON_TOOLBAR , RIBBON_TABS , RIBBON_VERTICAL_TABS }
	Types of ribbons. More...

enum	RibbonFlip { FLIP_NO , FLIP_UP_LEFT , FLIP_DOWN_RIGHT }
	Filp directions of ribbons.

enum	TextBoxType : int { TBT_TEXT = 0 , TBT_CAP_SENTENCES = 1 , TBT_PASSWORD = 2 , TBT_NUMBER = 3 , TBT_EMAIL = 4 }

Functions
static DialogQueue *	dialog_queue_singleton (NULL)

float	getLatestDt ()

void	showMessage (const core::stringw &message, const float time)

Widget *	getFocusForPlayer (const unsigned int playerID)
	Returns the widget currently focused by given player, or NULL if none. More...

void	focusNothingForPlayer (const unsigned int playerID)
	Focuses nothing for given player (removes any selection for this player). More...

bool	isFocusedForPlayer (const Widget *w, const unsigned int playerID)
	Returns whether given the widget is currently focused by given player. More...

int	getTitleFontHeight ()

int	getSmallTitleFontHeight ()

int	getTinyTitleFontHeight ()

int	getFontHeight ()

int	getSmallFontHeight ()

int	getLargeFontHeight ()

void	clear ()
	erases the currently displayed screen, removing all added irrLicht widgets More...

void	update (float dt)
	Updates all widgets that need to be updated. More...

void	cleanForGame ()
	like GUIEngine::clear, but to be called before going into game

void	clearScreenCache ()

void	switchToScreen (Screen *screen)
	Low-level mean to change current screen. More...

void	addScreenToList (Screen *screen)
	Add a screen to the list of screens known by the gui engine.

void	removeScreen (Screen *screen)
	Remove a screen from the list of screens known by the gui engine.

void	reshowCurrentScreen ()
	to be called after e.g. More...

void	cleanUp ()
	Clean some of the cached data, either for a shutdown or a reload. More...

void	deallocate ()
	To be called after cleanup(). More...

void	resetGlobalVariables ()

void	init (IrrlichtDevice device_a, IVideoDriver driver_a, AbstractStateManager *state_manager, bool loading)

void	reloadSkin ()
	call when skin in user config was updated

void	reloadForNewSize ()
	call when screen size changed

void	addGUIFunctionBeforeRendering (std::function< void()> func)
	Add gui-related function before rendering GUI (from other thread)

void	render (float elapsed_time, bool is_loading)
	called on every frame to trigger the rendering of the GUI. More...

void	clearLoadingTips ()

void	renderLoading (bool clearIcons=true, bool launching=false, bool update_tips=true)
	renders a "loading" screen

void	flushRenderLoading (bool launching)
	poll events during rendering to prevent unresponsive window

void	reserveLoadingIcons (int count)
	The engine is being told there will be more icons.

void	addLoadingIcon (irr::video::ITexture *icon)
	to spice up a bit the loading icon : add icons to the loading screen

Widget *	getWidget (const char *name)
	Finds a widget from its name (PROP_ID) in the current screen/dialog. More...

Widget *	getWidget (const int id)
	Finds a widget from its irrlicht widget ID in the current screen/dialog. More...

void	disableGraphics ()

bool	isNoGraphics ()

void	init (irr::IrrlichtDevice device, irr::video::IVideoDriver driver, AbstractStateManager *state_manager, bool loading=true)
	Call this method to init the GUI engine. More...

irr::IrrlichtDevice *	getDevice ()

irr::gui::IGUIEnvironment *	getGUIEnv ()

irr::video::IVideoDriver *	getDriver ()

irr::gui::ScalableFont *	getSmallFont ()

irr::gui::ScalableFont *	getFont ()

irr::gui::ScalableFont *	getOutlineFont ()

irr::gui::ScalableFont *	getLargeFont ()

irr::gui::ScalableFont *	getHighresDigitFont ()

irr::gui::ScalableFont *	getTitleFont ()

irr::gui::ScalableFont *	getSmallTitleFont ()

irr::gui::ScalableFont *	getTinyTitleFont ()

Screen *	getCurrentScreen ()

AbstractStateManager *	getStateManager ()

Skin *	getSkin ()

void	setSkin (Skin *skin)

Screen *	getScreenNamed (const char *name)

void	showMessage (const irr::core::stringw &message, const float time=5.0f)
	shows a message at the bottom of the screen for a while More...

bool	isWithinATextBox ()

void	setWithinATextBox (bool in)

Variables
PtrVector< Widget, REF >	needsUpdate
	Widgets that need to be notified at every frame can add themselves there (FIXME: unclean)

PtrVector< Screen, REF >	g_loaded_screens

float	dt = 0

std::vector< MenuMessage >	gui_messages

bool	g_is_no_graphics [PT_COUNT]

int	g_expected_icon_count = 0

std::vector< irr::video::ITexture * >	g_loading_icons

core::stringw	g_tips_string

static ModalDialog *	modalWindow = NULL
	global instance of the current dialog if any

bool	pointer_was_shown
	To remember and restore the previous state.

SkinWidgetContainer *	g_bg_container = NULL
	The widget used to hold the scrollbar BG.

SkinWidgetContainer *	g_thumb_container = NULL
	The widget used to hold the scrollbar thumb.

static bool	g_is_within_a_text_box = false

const unsigned int	FOCUSABLE_IDS_BASE = 100

const unsigned int	UNFOCUSABLE_IDS_BASE = 1000

static unsigned int	id_counter = FOCUSABLE_IDS_BASE
	Used to assign irrLicht IDs to widgets dynamically.

static unsigned int	id_counter_2 = UNFOCUSABLE_IDS_BASE
	for items that can't be reached with keyboard navigation but can be clicked

const int	BUBBLE_MARGIN_ON_RIGHT = 15

Detailed Description

Contains all GUI engine related classes and functions.

See GUI Module Overview for more information.

Enumeration Type Documentation

◆ BadgeType

enum GUIEngine::BadgeType

Enumerator
LOCKED_BADGE	display a lock on the widget, to mean a certain game feature is locked
OK_BADGE	display a green check on a widget, useful e.g. to display confirmation
BAD_BADGE	display a red mark badge on the widget, useful e.g. to warn of an invalid choice
TROPHY_BADGE	display a trophy badge on the widget, useful e.g. for challenges
GAMEPAD_BADGE	A gamepad icon.
KEYBOARD_BADGE	A keyboard icon.
LOADING_BADGE	An hourglass badge to indicate loading.
ZIPPER_BADGE	A zipper badge to indicate that this player receives a boost.
ANCHOR_BADGE	A anchor badge to indicate that this player receives a handicap.
DOWN_BADGE	A down arrow badge to indicate new addons for downloading.
HEART_BADGE	A heart badge, to indicate e.g. a favorite track
REDDOT_BADGE	A red dot badge, to indicate there's something new inside.

◆ RibbonType

enum GUIEngine::RibbonType

Types of ribbons.

Enumerator
RIBBON_COMBO	select one item out of many, like in a combo box
RIBBON_TOOLBAR	a row of individual buttons
RIBBON_TABS	a tab bar
RIBBON_VERTICAL_TABS	a vertical tab bar

Function Documentation

◆ cleanUp()

void GUIEngine::cleanUp ( )

Clean some of the cached data, either for a shutdown or a reload.

If this is a shutdown then you also need to call free().

◆ clear()

void GUIEngine::clear ( )

erases the currently displayed screen, removing all added irrLicht widgets

Note: Do not use directly. Use a state manager instead to get higher-level functionnality.

◆ deallocate()

void GUIEngine::deallocate ( )

To be called after cleanup().

The difference between cleanup() and free() is that cleanUp() just removes some cached data but does not actually uninitialize the gui engine. This does.

◆ focusNothingForPlayer()

void GUIEngine::focusNothingForPlayer ( const unsigned int playerID )

Focuses nothing for given player (removes any selection for this player).

Note: Do NOT use irrLicht's GUI focus facilities; it's too limited for our needs, so we use ours. (i.e. always call these functions, never those in IGUIEnvironment)

◆ getCurrentScreen()

Screen* GUIEngine::getCurrentScreen ( )

inline

Returns: the currently shown screen, or NULL if none

◆ getDevice()

irr::IrrlichtDevice* GUIEngine::getDevice ( )

inline

Returns: the irrlicht device object

◆ getDriver()

irr::video::IVideoDriver* GUIEngine::getDriver ( )

inline

Returns: the irrlicht video driver object

◆ getFocusForPlayer()

Widget * GUIEngine::getFocusForPlayer ( const unsigned int playerID )

Returns the widget currently focused by given player, or NULL if none.

Note: Do NOT use irrLicht's GUI focus facilities; it's too limited for our needs, so we use ours. (i.e. always call these functions, never those in IGUIEnvironment)

◆ getFont()

irr::gui::ScalableFont* GUIEngine::getFont ( )

inline

Returns: the "normal" font (useful for text)

◆ getFontHeight()

int GUIEngine::getFontHeight ( )

Returns: the height of the font in pixels

◆ getGUIEnv()

irr::gui::IGUIEnvironment* GUIEngine::getGUIEnv ( )

inline

Returns: the irrlicht GUI environment object

◆ getHighresDigitFont()

irr::gui::ScalableFont* GUIEngine::getHighresDigitFont ( )

inline

Returns: the "high-res digits" font (useful for big numbers)

◆ getLargeFont()

irr::gui::ScalableFont* GUIEngine::getLargeFont ( )

inline

Returns: the "large" font (useful for text)

◆ getLatestDt()

float GUIEngine::getLatestDt ( )

Precondition: the value returned by this function is only valid when invoked from GUIEngine::render

Returns: the time delta between the last two frames

◆ getSkin()

Skin* GUIEngine::getSkin ( )

inline

Precondition: GUIEngine::init must have been called first

Returns: the skin object used to render widgets

◆ getSmallFont()

irr::gui::ScalableFont* GUIEngine::getSmallFont ( )

inline

Returns: the smaller font (useful for less important messages)

◆ getSmallFontHeight()

int GUIEngine::getSmallFontHeight ( )

Returns: the height of the small font in pixels

◆ getSmallTitleFont()

irr::gui::ScalableFont* GUIEngine::getSmallTitleFont ( )

inline

Returns: the "small title" font (it's bigger and orange, useful for sub headers/captions)

◆ getStateManager()

AbstractStateManager* GUIEngine::getStateManager ( )

inline

Returns: the state manager being used, as passed to GUIEngine::init

◆ getTinyTitleFont()

irr::gui::ScalableFont* GUIEngine::getTinyTitleFont ( )

inline

Returns: the "tiny title" font (it's bigger and orange, useful for sub headers/captions)

◆ getTitleFont()

irr::gui::ScalableFont* GUIEngine::getTitleFont ( )

inline

Returns: the "title" font (it's bigger and orange, useful for headers/captions)

◆ getTitleFontHeight()

int GUIEngine::getTitleFontHeight ( )

Returns: the height of the title font in pixels

◆ getWidget() [1/2]

Widget * GUIEngine::getWidget ( const char * name )

Finds a widget from its name (PROP_ID) in the current screen/dialog.

Parameters

name	the name (PROP_ID) of the widget to search for

Returns: the widget that bears that name, or NULL if it was not found

◆ getWidget() [2/2]

Widget * GUIEngine::getWidget ( const int id )

Finds a widget from its irrlicht widget ID in the current screen/dialog.

Parameters

name	the irrlicht widget ID (not to be confused with PROP_ID, which is a string) of the widget to search for

Returns: the widget that bears that irrlicht ID, or NULL if it was not found

◆ init()

void GUIEngine::init	(	irr::IrrlichtDevice *	device,
		irr::video::IVideoDriver *	driver,
		AbstractStateManager *	state_manager,
		bool	loading = `true`
	)

Call this method to init the GUI engine.

Precondition: A irrlicht device and its corresponding video drivers must have been created

Parameters

device	An initialized irrlicht device object
driver	An initialized irrlicht driver object
state_manager	An instance of a class derived from abstract base AbstractStateManager
loading	if it's (re-)loading the GUIEngine

◆ isFocusedForPlayer()

bool GUIEngine::isFocusedForPlayer	(	const Widget *	w,
		const unsigned int	playerID
	)

Returns whether given the widget is currently focused by given player.

Note: Do NOT use irrLicht's GUI focus facilities; it's too limited for our needs, so we use ours. (i.e. always call these functions, never those in IGUIEnvironment)

◆ render()

void GUIEngine::render	(	float	elapsed_time,
		bool	is_loading
	)

called on every frame to trigger the rendering of the GUI.

called on every frame to trigger the rendering of the GUI

Parameters

elapsed_time	Time since last rendering calls (in seconds).
is_loading	True if the rendering is called during loading of world, in which case world, physics etc must not be accessed.

◆ reshowCurrentScreen()

void GUIEngine::reshowCurrentScreen ( )

to be called after e.g.

a resolution switch

◆ showMessage()

void GUIEngine::showMessage	(	const irr::core::stringw &	message,
		const float	time = `5.0f`
	)

shows a message at the bottom of the screen for a while

Parameters

message	the message to display
time	the time to display the message, in seconds

◆ switchToScreen()

void GUIEngine::switchToScreen ( Screen * screen )

Low-level mean to change current screen.

Note: Do not use directly. Use a state manager instead to get higher-level functionnality.

◆ update()

void GUIEngine::update ( float dt )

Updates all widgets that need to be updated.

Parameters

dt	Time step size.

Namespaces

Classes

Enumerations

Functions

Variables

Detailed Description

Enumeration Type Documentation

◆ BadgeType

◆ RibbonType

Function Documentation

◆ cleanUp()

◆ clear()

◆ deallocate()

◆ focusNothingForPlayer()

◆ getCurrentScreen()

◆ getDevice()

◆ getDriver()

◆ getFocusForPlayer()

◆ getFont()

◆ getFontHeight()

◆ getGUIEnv()

◆ getHighresDigitFont()

◆ getLargeFont()

◆ getLatestDt()

◆ getSkin()

◆ getSmallFont()

◆ getSmallFontHeight()

◆ getSmallTitleFont()

◆ getStateManager()

◆ getTinyTitleFont()

◆ getTitleFont()

◆ getTitleFontHeight()

◆ getWidget() [1/2]

◆ getWidget() [2/2]

◆ init()

◆ isFocusedForPlayer()

◆ render()

◆ reshowCurrentScreen()

◆ showMessage()

◆ switchToScreen()

◆ update()